SMX Plus High Performance Riding Boot Built for Speed • High-tech microfiber upper construction is lightweight and extremely durable. • Forefoot laminated with shock absorbing open cell foam while the ankle area has a highly breathable lining for improved comfort. • Large front and rear asymmetrical accordion zones are optimized to maximize flexibility for superior comfort and safety. • Durable sole is designed for improved riding feel and features evenly textured rubber for consistent grip • The S-MX Plus Boot is CE certified. Unique Multi Link Control System • Alpinestars unique Multi Link Control System provides advanced support for the ankle, limiting hyper-torsion, hyper-extension and hyper- flexion as well as providing additional impact protection to the ankle and achilles. Premium protection • Contoured shin plate protector is injected with high modulus TPU for superior impact and abrasion resistance. • Wide, ventilated, heel counter extends to the ankle and is combined with a shock absorbing padded insert and self-moulding foam ankle protectors. • Replaceable heel slider and external side heel slider are positioned to dissipate shock and promote sliding during an accident. Race inspired details • Newly designed, replaceable TPU toe slider with snap-in assembly provides more coverage around the toe area. • Inner Kevlar® speed lacing closure and a unique lateral zipper offer precise and secure fitting. • Zippered closure mounted on accordion stretch panel features a Velcro tab that locks the zip pull closed, keeping it flat and secure. • Micro adjustable ratchet buckle closure on the calf lets you finely tune the fit of the boot for maximum security and comfort. • Alpinestars anatomical and replaceable countered EVA foot bed provides arch support and greater feel through the forefoot.